Wiper bucket system



FIG. 1 is a perspective view of a wiper bucket system showing our new design;

FIG. 2 is a back view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the figures are included for the purpose of illustration and form no part of the claimed design. 

CLAIM The ornamental design for a wiper bucket system, as shown and described. 